OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.

OPTEK Technology Inc. —

1645 Wallace Drive, Carrollton, Texas 75006

Phone: (972) 323-2200 or (800) 341-4747

FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com

Issue A.4

05/10

Page 3 of 4

Typical Electro-Optical Characteristics Curves

Hi-Reliability Visible LED Lamp

OVM4x, OVM4xTX, OVM4xTXV

1.0

0.8

0.6

0.4

0.2

0.0

780

380

430

480

530

580

630

680

730

Wavelength (nm)

Wavelength Characteristics

Red

Yellow

Green

Blue

0

20

40

60

80

100

1.4 1.6 1.8

2

2.2 2.4 2.6 2.8

3

3.2 3.4 3.6

Vf (V)

Red

Yellow

Green

Blue

Forward Voltage vs Forward Current

Forward Voltage vs Temperature

1.5

2.0

2.5

3.0

3.5

4.0

-100

-50

0

50

100

150

200

Te m p e r a t ur e ( D e g . C

Red

Yellow

Green

Blue

0.1

1.0

10.0

-75

-50

-25

0

25

50

75

100

125

150

De g C

OVM4B

OVM4R

OVM4Y

OVM4G

Relative Intensity vs Temperature

Spatial Intensity Distribution

Red

Yellow

Green

Blue

0

500

1000

1500

2000

2500

3000

3500

4000

0

20

406080

100

120

Intensity vs Forward Current

Forward Current (mA)